I appreciate your query.
Unfortunately, you have taken the medical abortion
kit in the wrong dosage.
It is extremely essential to take the medicines in the correct order and the correct dosage.
Since you mention some retained tissues found on your ultrasound
, I urge you to contact your gynecologist at the earliest.
She would interpret the report, and decide if the amount/volume of retained tissues are significant.
If they are significant enough, then she would advice a surgical evacuation.
Otherwise, for minor amounts of retained tissues, further medical management is possible.
I hope this helped you.